Cable cone clamp



March 13, 1934. 5 r AL 1,951,064

CABLE CONE CLAMP Filed Aug. 5, 1933 Invenrs: Warm Z W and Erfieri' Jfarw oerefr:

Patented Mar. 13, 1934 CABLE CONE CLAMP Aaron T. Richards and Robert J. Cowper, Jr., Laramie, Wyo.

Application August 3, 1933, Serial No. 683,539

Our invention relates to cable cone clamps and has for its object to provide a clamp for gripping the end of a cable so as to connect it with a source of power by which a pulling action may be exerted upon the cable.

A further object of our invention is to provide a clamp of the character described which will be simple and inexpensive in construction, readily clamped upon a rope and particularly adapted to grip the terminal cone in which the end of a pulling cable is usually secured.

With the objects above described and other objects hereinafter set forth our invention consists of the construction and combination of elements hereinafter described and claimed.

Referring to the drawing:

Figure 1 is a side view of the cone clamp embodying our invention, showing the jaws closed together.

Figure 2 is a side view partly broken away,

showing the jaws in open position.

Figure 3 is an end View of the clamp shown in Figure 1, and

Figure 4 is an edge view of the clamp shown in Figure 1.

Referring to the drawing, 1 and 2 indicate the legs of the clamp pivoted together at their upper ends by pin 3 and having their lower ends inturned to form gripping jaws 4 and 5 adapted to meet on line 6 to grip between them anything on which a pulling strain is to be exerted. In the clamp here shown the gripping faces are provided respectively with tapering grooves '7 and 8, semicircular in cross section, adapted to fit the conical ferrule 9 on the end of a cable 10. On pivot pin 3 is carried inverted U 11 to receive the end of a hoisting rope or chain.

Spring 12 bears at its ends against the inner edges of legs 1 and 2 and serves to force the gripping jaws apart.

At the lower end of jaw 1 is a U-shaped link 14 adapted to enclose between its parallel sides the lower end of the other leg 2 of the clamp. Link 14 is secured to leg 1 by pins 13 and 13 Between the free ends of the sides of this link on pivot pin 15 is pivoted a lever 16 having its lower end extending inward from pivot pin 15 and curved at 17 to form a cam surface. The free end 18 of lever 16 is tapered off so as to be readily engaged by locking link 19 which consists of parallel side plates pivoted at 20 to leg 1 and carrying at the free ends of the side plates pin 21 which is adapted to engage the outer edge of the upper end of lever 16.

In use the cable end 10 is held between the faces of the clamping jaws 4 and 5 and the lower end of leg 2 is swung towards the lower end of leg 1 against the resistance of spring 12 until the cable end is held in grooves 7 and 8. Lever 16 is swung on pivot 15 towards leg 2 causing cam 17 to act to force gripping jaws 4 and 5 to grip the cable end cone 9 firmly between them. When lever 16 is against the outer edge of leg 2 the free end of locking link 19 is swung down to bring its pin 15 against the outer edge of the upper end 18 of lever 16.

The faces of the gripping jaws may, of course, be shapedto fit any particular article or may be left plain. Cam 1'? may be shaped so as to cause the gripping jaws to be forced together with any degree of force desired.

Having thus described our invention, what we claim is:-

A cone clamp comprising a pair of legs pivoted together at one end and having their free ends provided with inwardly facing clamping jaws, means for yieldingly holding the jaws apart and means for forcing the jaws together comprising parallel arms secured to the free end of one leg arranged to receive the free end of the other leg between them, a cam pivoted between the outer ends of the arms and bearing against the outer edge of the leg, an arm for rotating the cam, and a locking link pivoted to the leg carrying the parallel arms and adapted to engage the end of the arm for rotating the cam.

AARON T. RICHARDS.

ROBERT J. COWPER, JR. 

